/**
* Default constructor.
* @param threadsNumber Threads number.
*/
internal SolverTests(int threadsNumber)
{
THREADS_NUMBER = threadsNumber;
threads = new Thread[THREADS_NUMBER];
runners = new TestRunner[THREADS_NUMBER];
testsResults = new bool[NUMBER_OF_TESTS];
int[] testsIds = new int[NUMBER_OF_TESTS];
for (int i = 0; i < NUMBER_OF_TESTS; i++)
{
testsIds[i] = i;
}
/*
* Randomization of tests before assignments to threads
*/
for (int i = 0; i < NUMBER_OF_TESTS; i++)
{
int lastIndex = NUMBER_OF_TESTS - i - 1;
int j = SudokuStore.randomIndex(NUMBER_OF_TESTS - i);
if (j != lastIndex)
{
int l = testsIds[lastIndex];
testsIds[lastIndex] = testsIds[j];
testsIds[j] = l;
}
}
/*
* Tests assignments to threads
*/
int defThreadSize = NUMBER_OF_TESTS / THREADS_NUMBER;
int remaining = NUMBER_OF_TESTS - defThreadSize * THREADS_NUMBER;
int t = 0;
for (int i = 0; i < THREADS_NUMBER; i++)
{
int threadSize = defThreadSize;
if (i < remaining)
{
threadSize++;
}
int[] assigments = new int[threadSize];
for (int j = 0; j < threadSize; j++)
{
assigments[j] = testsIds[t];
t++;
}
runners[i] = new TestRunner(i, assigments, testsResults);
threads[i] = new Thread(runners[i].run);
}
}
/**
* Random string generator.
* @param length Length of random string.
* @return Random string containing a-zA-Z0-9.
*/
public static String randomString(int length)
{
if (length < 1)
{
return("");
}
char[] chars =
{
'z', 'x', 'c', 'v', 'b', 'n', 'm', 'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p',
'Z', 'X', 'C', 'V', 'B', 'N', 'M', 'A', 'S', 'D', 'F', 'G', 'H', 'J', 'K', 'L', 'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P',
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9'
};
String rndStr = "";
for (int i = 0; i < length; i++)
{
rndStr = rndStr + chars[SudokuStore.randomIndex(chars.Length)];
}
return(rndStr);
}
/**
* Default constructor based on random Sudoku puzzle example.
*
* @param parameters Optional parameters.
*
* @see #PARAM_DO_NOT_SOLVE
* @see #PARAM_DO_NOT_TRANSFORM
* @see #PARAM_GEN_RND_BOARD
*/
public SudokuGenerator(params char[] parameters)
{
setParameters(parameters);
initInternalVars();
if (generateRandomBoard == true)
{
boardInit(null, "random board");
}
else
{
int example = SudokuStore.randomIndex(SudokuPuzzles.NUMBER_OF_PUZZLE_EXAMPLES);
int[,] board = SudokuStore.boardCopy(SudokuStore.getPuzzleExample(example));
if (transformBeforeGeneration == true)
{
boardInit(SudokuStore.seqOfRandomBoardTransf(board), "transformed example: " + example);
}
else
{
boardInit(board, "example: " + example);
}
}
}
